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Test investigation under real conditions on the effectiveness of a photocatalytic paint system in reducing the bacterial load in certain environments - the interior walls and the indoor room air www.abolinco.com University of Athens | EUgenidio Clinic Laboratory of Medical Biopathology and Molecular Medicine Case Study EUGENIDIO CLINIC UNIVERSITY OF ATHENS ROOM 111 For the conduction of the specific research one room in the first floor of the clinic was used: room number 111. The basic reason was to limit the influence of possible different test conditions affected by factors, such as indoor air quality and ventilation conditions, temperature, humidity, medical treatments and cleaning methods. An important objective was to investigate the effectiveness of the photocatalytic paint system in real time conditions such as daily and uncertain urgent conditions. For this reason, during the experiment the test the room was, most of the time, occupied by patients and in general, it was under full medical service function. No cleaning methods concerning wall treatment took place during the test measurements. The building For the conduction of the bacterial load test, Air Ideal 3P instrument by Biomerieux was used. The portable meter of VOC ppb RAE Plus (RAE systems) was used for the measurements of volatile organic compounds. The measurements for the PM pollution were realised by the recorder of mass of floating particles (Model 8520 DUSTTRAKTM Aerosol Monitor) For the treatment of the Room, ABOLIN’s Photocatalytic paint ACTIVE COOL was applied. The absolute offered technology used by the Active Cool paint demonstrates a dual continuous action: When regularly applied on exterior walls, it transforms air pollution into harmless residues and, at the same time, performs a reflective barrier, which allows the limitation of energy use for cooling. As an interior wall coating, it prevents the formation of bacteria colonies onto walls and at the same time acts as an air cleaner. The Active Cool is a unique and a simple solution where the need for improved air quality and thermal comfort conditions is of high importance. It is suitable for any kind of mineral surface. Limited Voc’s content, no preservatives or heavy metals. www.abolinco.com University of Athens | EUgenidio Clinic EYGENIDIO CLINIC UNIVERSITY OF ATHENS Case Study The building 5 Colonies/m2 Blood Agar Test: Walls Blood Agar Test: Indoor Air 600 Colonies/m3 Mackonkey Agar Test: Walls Barren 3 Colonies/m3 Gram (-) Bacteria Mackonkey Agar Test: Indoor Air Sabouraud Agar Test: Walls Barren 5 Colonies/m3 Penicillium Sabouraud Agar Test: Indoor Air Indoor air quality Test Before the treatment with Photocatalytic Coating on 5th of May Scientific Supervisor: Prof. Mat Santamouris Research Associates: Dr. Afroditi Synnefa Investigation Area: Indoor Air On Average Not acceptable for EU above VOC Concentration (μg/m3) 491 μg/m3 200 μg/m³ PM1 Concentration (μg/m3) 7.4 μg/m3 Unacceptable limits PM2,5 Concentration (μg/m3) 14 μg/m3 40μg/m3 PM10 Concentration (μg/m3) 21 μg/m3 50μg/m3 www.abolinco.com University of Athens | EUgenidio Clinic Scientific Director: Professor N.I Legakis. Microbiologist Head of laboratory: Dr. M.Tsakiri. Biopathologist Scientific expert: Mrs. E.Karahaliou. Lab Technician Case Study Test Examination for the bacterial load Before the treatment with Photocatalytic Coating on 5th of May Barren Blood Agar Test: Indoor Air 345 Colonies/m3 Mackonkey Agar Test: Walls Barren Mackonkey Agar Test: Indoor Air Colonies/m3 Gram (-) Bacteria Sabouraud Agar Test: Walls Barren Sabouraud Agar Test: Indoor Air 6 Colonies/m3 Penicillium The condition of surfaces such as walls, as well as indoor air quality in critical spaces such as hospitals, are very important factors concerning healthcare services. Additionally, factors that can contribute in a positive way in reducing healthcare risks, such as hospital infections, are very important. Test results under real conditions have demonstrated that the application of a photocatalytic coating on the walls of hospital room can contribute significantly in reducing colonies of Mackonkey Agar and Blood Agar on the walls and the indoor air. The coincidental increase in the measurement of Penicillium colonies/ m3 during the test and after the application of the photocatalytic coating can not be attributed to the photocatalytic process, but in other non permanent sources/ factors. Test After treatment with Photocatalytic Coating on 19th of May Investigation Area Mackonkey AgarTest Walls Indoor Air Blood Agar Test 100% Reduction 33% Reduction www.abolinco.com 42% Reduction Case Study Blood Agar Test: Walls University of Athens | EUgenidio Clinic Test for the bacterial load After the treatment with Photocatalytic Coating on 19th of May On Average Not acceptable for EU above VOC Concentration (μg/m3) 29 μg/m3 200 μg/m³ PM1 Concentration (μg/m3) 6.2 μg/m3 Not acceptable at all PM2,5 Concentration (μg/m3) 11,5 μg/m3 40μg/m3 PM10 Concentration (μg/m3) 12,5 μg/m3, 50μg/m3 Test After the treatment with Photocatalytic Coating on 19th of May . The reduction of particulate matters PM1 was 11%. The reduction of Volatile Organic Compounds was 40%. The reduction of particulate matters PM2.5 was 5%. The reduction of particulate matters PM10 was 25%. www.abolinco.com University of Athens | EUgenidio Clinic Investigation Area: Indoor Air Case Study Test for the Indoor air quality After treatment with Photocatalytic Coating on 19th of May ACTIVE COOL Photocatalytic Special Characteristics Ecoactive system Reduces the temperature of building envelope Improves indoor thermal comfort conditions Saves energy from Cooling Contributes to air pollution reduction Contributes to the mitigation of Urban Heat Island phenomenon Improves indoor and outdoor air quality Helps keep the aesthetic option of the walls clean Deodorising activity Anti-microbial activity Anti-mould activity The ACTIVE COOL fights harmful substances such as the Volatile Organic Compounds, Nitrogen Oxides, Benzene, Sulfur Dioxides, Bacteria, Particulate Matters, Mould. In addition, in comparison to ordinary paints with the same colour, it performs a supreme high solar reflective matt surface which blocks the incoming sun rays, helping you keep your home cooler. Abolin Co. Galaxia 18 Afaia Skaramaga Athens Greece 12462 Tel. (0030) 210 5575568 Fax. (0030)210 5570616 Email [email protected] Web www.abolinco.com